• ETRI Journal
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• 제28권3호
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• pp.320-328
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• 2006

Using biometrics to verify a person's identity has several advantages over the present practice of personal identification numbers (PINs) and passwords. To gain maximum security in a verification system using biometrics, the computation of the verification as well as the storing of the biometric pattern has to take place in a smart card. However, there is an open issue of integrating biometrics into a smart card because of its limited resources (processing power and memory space). In this paper, we propose a speaker verification algorithm using a support vector machine (SVM) with a very few features, and implemented it on a 32-bit smart card. The proposed algorithm can reduce the required memory space by a factor of more than 100 and can be executed in real-time. Also, we propose a hardware design for the algorithm on a field-programmable gate array (FPGA)-based platform. Based on the experimental results, our SVM solution can provide superior performance over typical speaker verification solutions. Furthermore, our FPGA-based solution can achieve a speed-up of 50 times over a software-based solution.

• 시큐리티연구
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• 제51호
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• pp.173-195
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• 2017

최근 국내는 보안통제가 강화됨에도 불구하고 사이버공간에서 국가의 주요기반 시설이 해킹당하는 사례가 증가하고 있다. 우리나라는 인터넷 등 고도화된 정보통신기술을 갖추고 있으나 북한 및 테러단체의 사이버테러로 위협을 받고 있다. 그럼에도 불구하고 국내의 사이버테러와 관련한 정책은 법과 제도적 장치가 미비하여 제대로 된 사이버테러 정책 및 전략계획을 수립하는데 한계가 있다. 따라서 본 연구는 좀 더 현실에 적합하고 효율적인 정책수립을 위한 시사점을 제시하고자 하였다. 연구의 목적을 달성하기 위해 전략기획의 이론적 분석틀에 따라 영국의 사이버안보 전략을 국내의 사이버안보 정책과 비교분석하였다. 그 결과 몇 가지 문제점이 도출되었다. 첫째, 국내의 사이버안보 정책은 외적환경을 고려하지 않았다. 둘째, 국내의 사이버안보의 목표설정과 정책 간의 연계성이 부족하고 모호하여 혼란을 초래하고 있다. 셋째, 국내 사이버안보의 세부 집행계획을 각 부처별로 수립함에 따라 부처 간의 혼재 등 부작용이 발생할 개연성 높은 것으로 나타났다. 넷째, 국내의 사이버안보 정책에 대한 평가와 환류는 평가 기준을 마련하는데 한계가 있는 것으로 나타났다. 따라서 국내의 사이버테러 대응을 위한 실효성 있는 정책수립을 위해서는 사이버안보정책의 전략적 접근을 통하여 장기적인 측면에서 비전과 구체적인 목표를 설정하고, 목표에 따라 임무를 제시하여 효율적인 집행계획을 수립할 필요가 있다. 그리고 국내 사이버안보정책의 문제점을 보완 개선하기 위해서는 지속적인 평가와 환류가 필요하다.

• 항공우주시스템공학회지
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• 제15권1호
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• pp.1-6
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• 2021

미국은 우주분야에서 최고의 기술력, 인력, 자금을 확보하고 있는 국가이며, 우주의 영역을 단순한 과학기술 뿐 아니라, 산업, 국가안보와 깊이 연결시키고 있다. 반면 우리나라의 경우 우주정책이 위성, 발사체 등 우주시스템의 개발 위주로 되어 있다. 양국간의 우주정책 체계도 상이하다. 이로 인해 미국과의 우주협력을 얘기하는데 상호이해의 차이가 발생한다. 본 연구는 미국의 우주정책 체계를 소개하고 양국의 우주정책 체계를 비교함으로써, 미국과의 협력에 있어 효과적인 방안을 찾는데 목적이 있다.

• 정보보호학회논문지
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• 제18권6B호
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• pp.259-269
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• 2008

Applying Varying Pseudonym (VP) to design of Radio Frequency Identification (RFID) authentication protocol outperforms the other existing approaches in several respects. However, this approach is prone to the well-known denial-ofservice (DOS) attack. In this paper, we examine the de-synchronization problems of VP-based RFID authentication protocols, and propose effective solutions to eliminate such weaknesses. We shall show that the proposed solutions indeed improve the security for these protocols, and moreover, these solutions require 0(1) computational cost for identitying a tag and 0(1) key space on the tag. These excellent performances make them very attractive to many RFID applications.

• International Journal of Computer Science & Network Security
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• 제21권7호
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• pp.249-256
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• 2021

An issue of security and threat is urgent as well as it concerns everyone: a person, community, state, etc. Today, the question of cybersecurity has become especially relevant due to general digitalization and the spread of the cyberculture. In terms of it, the growing popularity of videogames can be observed. Their impact on society differs significantly, therefore, it needs thorough consideration. The purpose of the article is to disclose the role of videogames in cybersecurity. To achieve the stated purpose, such methods as analysis, synthesis, systematization and practical involvement of videogames have been used. As a result, three levels of possible threat of videogames has been distinguished: videogames as a possibly dangerous software, as a tool of propaganda and spread of stereotypes, as a space for the creation of virtual communities. In conclusion, it is stated that videogames can be not only a threat, but also a tool for strengthening the cybersecurity.

• International Journal of Computer Science & Network Security
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• 제21권9호
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• pp.292-296
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• 2021

The purpose of this article is to explore the modern branding - its nature, history, originality, spirit and value to consumers. In particular, graphic design of the brand is an important component in terms of the modern European culture. The scientific novelty of the work implies the study of the contemporary design, which widely embraces the sphere of cultural and social life and can contribute to the development of progressive phenomena in society, as the design can literally be defined as a rethinking, a search for new meanings. The design itself is a versatile means of communication at the level of feelings and meanings. One of its main goals is the harmonization, and even formation of perception of the world, creation of new images or rethinking the essence of ordinary things. Hence, the research in the field of the design development is topical in the worldwide cultural space..

• 국제지역연구
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• 제13권2호
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• pp.47-72
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• 2009

소련 해체와 이에 따른 냉전 종식 이후 러시아는 미국이 주도하는 국제질서 속에서 자국의 국가이익에 맞는 역할과 위상을 모색해 왔다. 미국의 세계정책에 조건부로 공조하기도 하고, 옛 소련지역을 포함하는 포스트소비에트 공간에 대해서는 자국의 이익을 보호하고 영향력을 복원하려는 적극적인 노력도 경주하고 있다. 그 이유는 포스트소비에트 공간은 에너지 자원 확보와 국제정치 행위자들의 영향력 증대 및 제 국가의 국제사회 위상 제고 등을 둘러싸고 21세기 새롭게 부각하는 러시아와 미국을 위시한 서방세계의 세력 각축장이라고 할 수 있기 때문이다. 특히, 포스트소비에트 공간의 추축국으로 인식되었던 우크라이나는 전통적인 배타적 영향력을 유지하려는 러시아와 소련 해체 이후 지속적으로 영향력을 확대하고자 하는 미국 및 서방 세력이 충돌하며 '신냉전'적 세력경쟁의 양상이 표출되는 지역이다. 이 글은 러시아가 구사하는 군사안보차원의 전략과 정책은 무엇이며, 이것이 포스트소비에트 공간의 주요 국가인 우크라이나에서 어떻게 투사되고 있는지, 그리고 이 과정에서 표출되는 우크라이나 및 서방과 러시아의 갈등 요인은 무엇이며, 그 양상은 어떻게 전개되고 있는가에 대해 고찰하고 있다.

• 전자통신동향분석
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• 제38권2호
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• pp.85-95
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• 2023

Space optical communication technology capable of large-capacity, high-speed, and low-latency communication can reduce the size, weight, and power consumption of radio frequency communications in existing satellite systems, thereby reducing launch costs, accommodating additional science instruments, and extending lifetime. Despite the high technical difficulty, various projects are being carried out in advanced countries regarding space technology for use in national security and defense, earth observation, and space communications. We review the advantages, key components, and development trends of space optical communication technology, which is attracting attention in applications such as satellite communications, intersatellite linking, and deep space communications.

• 시스템엔지니어링학술지
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• 제12권2호
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• pp.19-27
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• 2016

Many countries concentrated on the space developments to enhance the national security and the people's quality of life. A space launch vehicle for accessing the space is a typical large complex system that is composed of the high-technology like high-performance, high-reliability, superhigh-pressure, etc. The project developing large complex system like space launcher is mostly conducted in the uncertain environment. To achieve a goal of the project, its success probability should be enhanced consistently by reducing its uncertainty during the life cycle: it's possible to reduce the project's uncertainty by performing the risk management (RM) that is a method for identifying and tracing potential risk factors in order to eliminate the risks of the project. In this paper, we introduce the risk management (RM) process applied for a Space Launch Vehicle R&D Project.

• International Journal of Computer Science & Network Security
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• 제22권6호
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• pp.374-381
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• 2022

The article identifies and theoretically substantiates the trends of national resilience in the context of establishing the security of the country and its civilizational subjectivity. The strategy of development of the pedagogical university in the conditions of European integration into the European educational and scientific space based on certain characterological features of the personality of the volunteer in the context of allocation of personal resilience is developed. The analysis of both external and internal challenges and threats to the civilization of the country needs to be understood in the context of economic, socio-political, legal, military-political, spiritual-cultural, educational-scientific and network-information resilience. The concepts of "national resilience" and "national security" are quite close - at first glance, even identical. However, a deeper understanding clarifies the differences: national security is a state of protection of the country identity and its very existence, the realization of its national interests. In turn, resilience is a fairly effective strategy and a fundamental guarantee of national security. At the same time, it is extremely important to understand that both national security as a state and national resilience as a strategy are only means of achieving and developing a strong and humanistic civilizational subjectivity of the country. After all, such subjectivity opens for citizens the opportunity for development, dignified self-realization and a proper life. The restructuring of the volunteer's motivational sphere is due to the dominance of such leading motives, which are focused mainly on maintaining and restoring health, which leads to distorted meaningful life goals: isolation, alienation, passivity, inertia, reduced activity, limited communication, etc. The characteristics of relatively stable human behavior include several primary and secondary properties. The primary (relevant) properties include patience, trust, hope, faith, confidence, determination, perseverance, and love; the secondary - punctuality, neatness, obedience, honesty, loyalty, justice, diligence, thrift, accuracy, conscientiousness, obligation, etc. The restructuring of the volunteer's motivational sphere is due to the dominance of such leading motives, which are focused mainly on maintaining and restoring health, which leads to distorted meaningful life goals: isolation, alienation, passivity, inertia, reduced activity, limited communication, etc. The characteristics of relatively stable human behavior include several primary and secondary properties. The primary (relevant) properties include patience, trust, hope, faith, confidence, determination, perseverance, and love; the secondary - punctuality, neatness, obedience, honesty, loyalty, justice, diligence, thrift, accuracy, conscientiousness, obligation, etc. The use of information and communication technologies in volunteering will contribute to the formation of resilience traits in the structure of personality formation. Directly to the personal traits of resilience should be included methodological competencies, which include methodological knowledge, skills and abilities (ability to define ultimate and intermediate goals, plan, conduct and analyze knowledge, establish and implement interdisciplinary links with disciplines of medical-psychological-pedagogical cycles, etc.). All these competencies form the professional resilience of the volunteer.